Service stop-cock



(No Model.)

B. J. BRADY.

SERVICE STOP 000K.

No. 353,533. Patented Nov. 30, 1886.

N PETERS, rhnmumo n im. Wnbin lom D C.

NiTnn STATES PAT NT OFFICE.

EDW'ARD J. BRADY, OF BROOKLYN, NEW YORK.

SERVICE STOP-COCK.

SPECIFICATION forming part of Letters Patent No. 353,533, dated November 30, 1886.

Application tiled August 9, 1886. Serial No. 210,408.

To all whom it may (30IL667'7L:

Be it known that I, EDWARD J. BRADY, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Service Stop-Cocks, of which the following is a specification.

Stop or service cocks for buildings are lo; cated between and connected to the pipe from the street water-main and the service-pipe of the building, and said cocks are used to cutoff the supply of water to the building. Much difficulty has heretofore been experienced in consequence of the water in the service-pipes ot' a building freezing in cold weather, and especially at night.

My invention relates to a stop or service cock having two valveseats and valves connected by their valve-stems to a lever which operates them alternately and siu'iultaneously, the one being opened while the other is closed. One valve admits or stops the water from the main pipe, while the other valve closes or opens a discharge-passage for the water in the houseservice-pipes to pass out into the sewer or other waste. I also provide and connect to the valve-ease at the discharge-passage a case forming water-way and a trap containing a ball-valve. The outlet-pipe from this case connects with the sewer, and when the entrance for water from the main pipe is closed the discharge'valve is simultaneously opened and all the water in the service-pipes is discharged into the sewer, and liability from freezing is avoided, and the ball-valve and water remaining in the trap act to prevent the entrance of sewer gas into the service-pipes of the building.

In the drawing I have represented my improvement by a vertical section.

a is part of the house service-pipe, b part of the pipe from the street-main, and c the valvecase, which parts are bolted or secured together by couplings in any well-known manner. The valve-case is made with the short cylinders d 01, covers 6 e, and caps ff, and between said covers and caps are the packingglands g g, through which parts the stems h h of the valves t 2' pass. Helical springs 15 t surround the valve-stems.

(No model.)

The post or standard It is connected to the top of the valve-case, and the leverl is pivoted to said standard and passes through slots in the valve-stems h h, and to the ends of said arm Z chains or wires on m are connected. Said wires or chains pass from the collar of the building, where my improved service-cock will generally be located,up through the building to some particular room, (which might be thejanitors quarters) from which place the said service-cock can be operated to admit water to the building, or to close the supply and at the same time open the discharge. so that the water in the pipes of the building will run off into the sewer.

The valve-case c is formed with a partition, 0, in which is the conical seat for the valve i, and with a depressed portion, 0". The seat of the valve t is formed in the bottom of said case a, and the trap-case n is bolted to the case 0 beneath the seat of the valve 13. There is a partition, 0, in the case a, and a ball-valve, 0', and a discharge-pipe, 1', to the sewer, and a coupling connecting said pipe to the trapcase a.

In the drawing the valve 2" is shown closed, and the water from the street main thereby cut off, while the valve 2' is open and the water in the service-pipes of the building is free to descend and run oft into the sewer. If the chain m is pulled, the position of the valves is reversed, the valve t" being opened and water admitted, and the valve 1; closed and the discharge shut 01f. There should always be water in the trap case n to assist in forming the gas-seal.

My improved stopcock is adapted for use in apartmenthouses, in which case one cock can be used in the plumbing of each apartment or flat to close the water from that fla without interfering with any other.

I claim as my invention- The combination, with the main pipe b and service-pipe a, of a valve case, 0, connecting said pipes, and having an opening and valveseat in the bottom, a transverse partition, 0, in said cnse,having an opening and valveseat therein, the conical valves 2' 7) above the respective seats, the perpendicular valve-stems h h, the caps and packing-glands through which the stems pass, the springs 15 t around 1 the valve-stems within the case, the lever Z, connected to the valve-stems, a fixed pivot for 5 said lever, the trap-case nbelow the seat of the valve 1', the partition 0, valve 0, and a discharge-pipe to the sewer, substantially as set forth.

Signed by me this 4th day of August, A. D. 886.

EDWARD J. BRADY.

Witnesses:

GEQ. T. PINCKNEY, WILLIAM G. M0131. 

